Adjustable hydraulic nozzle



Patented Aug. 23, |898.

A. B. EASTWOUD. ADJUSTABLE HYDRAULIC NOZZLE.

(Application led Nov. 11, 1897.) (No Model.)

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UNITED STATES 4PATENT GFFICE.

ASA B. EASTWOOD, OF NENVCASTLE, CALIFORNIA.

ADJ USTAB LE HYDRAU LIC NOZZLE.

SPECIFICATION forming part of Letters :Patent N o. 609,578, dated August 23, 1898.

Application filed November 11, 1897. Serial No. 658,135. (No model.)

. To @ZZ whom t rita/ 1f concern,.-

Be it known that I, ASA B. EASTWOOD, a citizen of the United States, residing at Newcastle, county of Placer, State of California, have invented an Improvement in Adjustable Hydraulic Nozzles; and I hereby declare the following to be a full, clear, and exact description of the same.

My invention relates to a device by which the amount of water supplied through a hydraulic nozzle maybe increased, diminished, or otherwise regulated.

It consists in the parts and the constructions and combinations of parts hereinafter described and claimed.

VFigure l is a sectional view taken through the apparatus. Fig. 2 is a plan View.

In the use of water under,v a high head or pressure for the purpose of driving what are known as hurdy-gurdy or momentum wheels it is frequently necessary to change the size of the nozzle,so as to increaseor reduce the power of the wheel. These Wheels are frequently employed in direct connection with hoisting apparatus, where it may be necessary to haul up anything from a single man to a full load, and if only one ,sizeof nozzle is employed it must be the largest that is necessary. Consequently when but one person or the cage alone is to be brought up a part of the Water must be diverted and discharged into the pit, so that only a small portion is used upon the wheel,while the other is wasted. As water is expensive where it is ordinarily used for such purposes, it is very important to save it and only use as much as may be necessary for the particular work in hand. The same variation of load occurs in electric plants using a varying power and in other machines driven by water-power. For this reason I have devised my present adjustable nozzle, which is so constructed that the engineer can change the size of the nozzle, so that a small, medium, or large nozzle can be instantly brought into line with the supply-pipe and the point of delivery, and when a small load is lifted the remainder of the water is held in the reservoir.

In the present case I have shown a box or casing A of any suitable dimensions, having a cover B bolted or otherwise fixed thereto. Into one side of the box opens the nozzle C,

i through which water is brought to the point of delivery. Within this box is tted a plate D, having a series of as many nozzles E as may be desired, these nozzles be'ing of varying diameter and Vadapted for the purposes for which they may be required. The nozzles may be permanently fixed, or they may be removably attached to the plate, so that changes may be made, if desired. All of these nozzles diverge, so as to form a direct smooth connection with the tapering inlet-pipe, and being fixed to or formed with the plate D they are movable with this plate.

Through the end of the box extends a rod G, and a tight joint is maintained where it enters the box by means of a stuffing-box II. The inner end of this rod Ais connected with the sliding plate D, and by means ofa lever the rod and plate can be moved, so as to bring either of the nozzles into line with the supply. The cover or side of the box opposite to the supply-pipe has an elongated slotted opening b of sufficient length to allow the projecting nozzles to slide from one end to the other in changing them. The plate is kept snugly against this part of the box by means of springs I, which press against plates J, fittin gin transverse grooves or channels in the bottom of the box, these plates being held up, so as to form a tight joint against the slide `D and prevent leakage between the nozzles and also to hold the plate against the outer side or cover of the box.

YWhere the water comes from a streamheavily charged with mud or sand, there is much of this sand brought into the box A, and in order to dispose of it I have shown depressions K, formed at each end of the box, so that the sand or debris will be graduallycarried to the ends and settle in these depressions or box, thus keeping it out of the way of the slide, which might otherwise be impeded in its movements.

L are discharge-openings having suitable controlling cocks or stops, and by opening these at any time the sand or collection will be forced out and the box kept clear.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. An adjustment for hydraulic nozzles consistin g of a transversely-movable slide having IOO a line of nozzles of varying diameter projecting from one side, a casing within which said slide is movable havin g a slotted cover through which the nozzles project at one side, a supply-pipe connecting with the other side, and a rod by which the slide'is movable within the chamber.

2. An adjustment for hydraulic nozzles consisting of a sliding plate having a series of nozzles projecting from one side and standing in the line of its movement, a casing Within which said slide is movable having a longitudinally-slotted cover through which the nozzles project whereby the slide is allowed to move the length of the slot, a supply-pipe connecting with the opposite side of the casing whereby either of the nozzles through the slide may be brought into line therewith, spring pressed packing plates extending transversely across the bottom of the casing and forming a joint with the bottom'of the slide whereby leakage from one nozzle to the other is prevented.

3. An adjustable hydraulic nozzle consisting of a slide having nozzles projecting from one side, a casing within which the slide is movable, a cover for said casing having a longitudinal opening through which the nozzles project and within which they are movable, a supply-pipe connecting with the opposite side of the casing, spring-pressed packing-plates whereby a joint is maintained between the plate and the nozzles, settlingchambers formed at the ends of the casing and discharge-openings therefrom.

In Witness whereof I have hereunto set my hand.

VASA B. EASTWOOD.

Witnesses:

S. H. NoURsE, JEssIE C. BRODIE. 

